All of the general revenues and special revenues and other funds deposited into the County Solid Waste Management System Aid Fund during each fiscal year shall be allocated by the Treasurer of State to each of the several counties in the state. The fund shall be distributed to such counties only as provided in this subchapter, on the basis of seventy-five percent (75%) divided equally among the seventy-five (75) counties of the state and twenty-five percent (25%) on the basis of population according to the most recent federal decennial census, with each county to receive an allocation thereof in the proportion that its population bears to the total population of the state.